In 1988, at an advertising agency meeting, the infamous saying, “Just do it,” was coined. It is thought to have increased the sales of Nike shoes from 18% to 43% (from $877 million to $9.2 billion). The slogan is considered to be one of the top two taglines of the twentieth century. These three words are often associated with the Nike “swoosh,” which is said to further capitalize on the “do it” attitude of the brand’s slogan.

Since that time, people have used these words for everything from encouragement to get a lot done to chants and cheers for sporting competitions and even for sexual innuendos. (Come on, you know you’ve said it before! 😉 )